baber/WOPTO huggingface dataset:
Patent GB-1186370-A (GB)
Title: Production of Aliphatic Ketones
Inventor: FLEISCHER JEAN CARROLL
IPC: B01J23/10
Filed: 1967-06-23
Abstract: 1,186,370. Aliphatic ketones. EASTMAN KODAK CO. 23 June, 1967 [27 June, 1966], No. 29008/67. Heading C2C. Ketones are made by contacting a gaseous mixture comprising water and one or more C 1-8  alkyl saturated aliphatic aldehydes in a molar ratio of water to aldehyde 1 : 1 to 25 : 1 in the presence of a catalyst comprising Li 2 O or activated Al 2 O 3 . Specified aldehydes are acetaldehyde, propionaldehyde, isobutyraldehyde and n-butyraldehyde and specified ketones are acetone, diethyl ketone, methyl ethyl ketone, methyl propyl ketone, methyl isopropyl ketone and di-isopropyl ketone. Byproducts referred to are isobutyric acid and acetic acid. Examples describe the production of di-isopropyl ketone from isobutyraldehyde and a mixture of methyl isopropyl ketone, diisopropyl ketone and acetone from a mixture of acetaldehyde and isobutyraldehyde at 450 C. using nitrogen as a carrier gas.
Patent GB-951681-A (GB)
Title: Manufacture of silicon nitride articles
Inventor: PARRATT NOEL JAMES
IPC: C04B35/591
Filed: 1961-08-11
Abstract: Shaped articles of silicon nitride are produced by mixing powdered silicon with a binder comprising sugar and water, the binder being of sufficient strength to hold the powder together to enable it to be moulded or extruded to shape and, after moulding or extrusion, converting the silicon to silicon nitride, e.g. by heating in an atmosphere of nitrogen.  After moulding or extrusion, but before conversion to silicon nitride, the binder may be wholly or entirely dried out, allowing the articles to be machined. The sugar and water are preferably used in equal proportions and the proportion of binder in the silicon may be in the range 2% to 30% by weight.
Patent GB-1429047-A (GB)
Title: Ultrasonic detectors
IPC: G01S7/52
Filed: 1973-06-19
Abstract: 1429047 Ultrasonic detection systems TOKYO KEIKI KK 19 June 1973 [19 June 1972 (2) 28 May 1973] 29079/73 Heading H4D An ultrasonic detection system having a transmit/receive transducer includes a duplexer between the transducer and a receiver, the duplexer comprising first and second coils wound on a magnetic core to form a transformer the coupling of which is magnetically controllable. In the Fig. 6 embodiment an ultrasonic pulseecho flaw detector includes a pulse generator 1, transmit/receive transducer 2, a saturable core isolator 6A, and receiver 3. During transmission a control pulse is fed via adjustable advance/ delay unit 22, waveform shaper 23 and capacitor 20 to diode 16 to make the diode non-conductive so that there is little transmission breakthrough to primary winding 7 on the core. At the same time the core is saturated by energization of control winding 12 so that virtually no signal is generated in the secondary winding 8. During reception, diode 16 becomes increasingly conductive, with a suitable time constant, thereby providing time-varied-gain for the echo signals; also, winding 12 is de-energized so that echo signals pass by normal transformer action to receiver 3. In alternative embodiments items 16, 17, 18, 20, 22 and 23 may be omitted, and control winding 12 may be on a separate core from the other windings but arranged to saturate their magnetic flux path. The invention is applicable also to fish-finding sonars.
Patent GB-823829-A (GB)
Title: A pressurized fluid discharge device
Inventor: CONNELL MAURICE WINSLOW
IPC: F16K17/40
Filed: 1957-09-16
Abstract: 823,829. Compressed gas container discharge devices. CONAX CORPORATION. Sept. 16, 1957, No. 29089/57. Class 8(2). Puncturing of a diaphragm 15 of a gas cylinder discharge device is effected by an explosiveactuated ram 24 having at one end of a reduced portion 35 an enlarged cutting head 49 which completely removes a slug from the centre of the diaphragm 15, and the annular passage bounded by the periphery of the hole so made and by the ram portion 35 passing therethrough forms a discharge passage connecting a bore 16 to which the gas container is connected to an outlet bore 18. The cutting edge 52 forms a rim surrounding a recessed portion 51 of the head 49 and slug so removed becomes dished and is caught in a pocket 13. Forward displacement of the ram is arrested when a tapered portion 48 thereof abuts and seals against a tapered portion 36 of the ram cylinder 26.
Patent GB-298640-A (GB)
Title: Process for the manufacture of dinaphthylene dioxide quinone
IPC: C07D493/06
Filed: 1928-10-10
Abstract: 298,640. I. G. Farbenindustrie Akt.- Ges. Oct. 13, 1927, [Convention date]. Dinaphthylene dioxide quinone.-An oxidation product of 1: 1<1>-dinaphthylene-2:8<1> : 8 : 2<1>-dioxide, apparently the 4 : 4<1>-quinone, is obtained as a red brown powder, giving a yellow leucocompound with alkali hydrosulphite, by oxidiz. ing the dinaphthylene dioxide with chromic acid in aqueous suspension in the presence or absence of another free acid. In an example, the oxidation is carried out by adding a solution of potassium bichromate to a suspension of the dinaphthylene dioxide in 25 per cent sulphuric acid.
Patent GB-303241-A (GB)
Title: Improved packing for caramel and like sweetmeats
IPC: B65D5/49
Filed: 1927-11-02
Abstract: 303,241. Murray, R. W., and Murray & Co., Ltd., R. S. Nov. 2, 1927. Packing confectionery.-In order to form compartments for packing caramels and like rectangular blocks of sweetmeats, a sheet 2, Fig. 1, of waxed paper or like suitable material is folded so as to form parallel channels 2<a>. A strip 3, Fig. 2, the width of which is equal to the width of the channels, is folded at a, b, c so tha.t when it is disposed as shown in Fig. 1 a series of compartments 5 is formed in which individual caramels are packed. Specification 224,132 is referred to.
Patent GB-886483-A (GB)
Title: Improved adjustment means for vehicle suspensions
IPC: B62D17/00
Filed: 1960-08-24
Abstract: 886,483. Vehicle suspensions. FORD MOTOR CO. Ltd. Aug. 24, 1960 [Aug. 27, 1959], No. 29270/60. Class 108(2). An arrangement for maintaining the caster and camber adjustment of the front road wheel in a motor vehicle haying an independent front suspension comprises a bracket 11 secured to a sprung portion 10 of the vehicle, a pivot 17 for a suspension arm 18 and having at least one projection 26 engaging the bracket, a locking member 27, and fastening means 31 securing the pivot, bracket and locking member together, tightening of the fastening means causing the or -each projection to bite into and grip the surface of the bracket and secure the pivot shaft against movement relatively to the bracket. In the preferred embodiment, the pivot 17 has two portions 21 provided with case hardened knurls, ridges, serrations or grooves to bite into the bracket 11 which has slots 24 to permit adjustment of the fastening means 31 and hence of the arm 18 relative to the bracket. A pair of bolts (not shown) may be mounted in a flange 16 of the arm 18 to facilitate the adjustment.
Patent GB-756130-A (GB)
Title: Cardio-active substances, processes for preparing same, stabilized solutions of cardio-active substances and a process for preparing same
IPC: A61K36/00
Filed: 1954-10-12
Abstract: The invention comprises Bovogenin A represented by the empirical formula C24H32O5 and having a m.p. of 247-262 DEG  C. and a specific rotation [a ]D22=0 DEG \sB4 DEG  (C=0.550 in methanol), Bovogenol A represented by an empirical formula C24H34O5 and having a m.p. of 260-270 DEG  C. and a specific rotation [a ]D2-=15.4 DEG \sB4 DEG (C=0.585 in methanol), Bovosidal A i.e. 3b -[1 - thevetoxy] - 14b  - hydroxy - 19 - oxo - 5a -bufadienolide having a m.p. of 220 DEG  to 238 DEG  C. and a specific rotation [a ]D22= - 86.6 DEG \sB2 DEG (C=1.046 in methanol) and Bovosidal D represented by the empirical formula C31H46O10 and having a m.p. 268-286 DEG  C. and a specific rotation [a ]D23= - 89 DEG \sB2 DEG  (C=0.971 in methanol and the process of recovering Bovogenin A from the plant Bowica volubilis Harvey by preparing a water-containing extract thereof, treating the obtained extract with lead hydroxide, preparing an organic solvent extract from the solution after separation of the precipitate and isolating the cardio-active compound in a crystalline form from the obtained extract.  After removal of the tannic acids &c. from the initial extract by means of lead hydroxide the solution is extracted with chloroform/ethanol mixture, the residue treated with water, the aqueous extract treated with ether and the cardio-active substance crystallized from the ethereal extract.  Alternatively the ethereal extract is purified by chromatography.  Bovosidal A, Bovosidal D and Bovogenol A are obtained by reducing Bovoside A, Bovoside D or Bogovenin A, e.g. with sodium boron hydride, lithium boron hydride, in a solvent.  Bovoside A, Bovoside D and Bovogenin A are stabilized against autooxidation an antioxidant, e.g. n-propyl gallate, ethyl gallate, gallic acid, nordihydroguairetic acid, dihydroguairetic acid, guairetic acid, d, l-tocopherol, sodium d, l-a -tocopherol phosphate, caffeic acid or ascorbic acid palmitate.  Examples describe the various aspects of the invention.
Patent GB-779433-A (GB)
Title: Magnetic commutator system for space distributing pulses received in time distribution
Inventor: HEALD EARL T
IPC: H04L17/30
Filed: 1955-10-14
Abstract: 779,433. Code telegraphy. COLLINS RADIO CO. Oct. 14, 1955, No. 29390/55. Class 40 (3). A receiving arrangement for detecting and storing the impulses of an equi-unit code comprises two rotating magnets to which the marking or spacing pulses are respectively fed in sequence and which vary the inductance of an associated circuit to produce a condition of series resonance and to generate a relatively large current or voltage pulse which is stored in an associated capacitor. In the unit shown in Fig. 3, the mark pulses applied to a coil 20 on the shaft 18 of a motor 19 influence a magnet 17 of low retentivity to vary the inductance L1 of a circuit including the capacitor C1 and an impedance 11 in series with a generator 10 so that the increase of current produces on the capacitor 21 an increased voltage which is applied at the output terminal 21. A space impulse applied to coil 16 and rotating magnet 12 similarly affects the circuit L<SP>1</SP>1, C<SP>1</SP>1. In the arrangement, Fig. 1, for receiving and storing a five-unit code combination, the marking and spacing pulses are respectively applied over separate conductors 25, 24 to coils on the shafts 13, 18 of a synchronous motor 22. The magnets 12, 17 are rotated past inductances L1 ... L5, L<SP>1</SP>1 . . . L<SP>1</SP>5 in synchronism with the reception of the code elements. The circuits L1, C1 and L<SP>1</SP>1, C<SP>1</SP>1 are connected in parallel to an impedance 11 and generator 10, a second impedance 23 being associated with circuits L2, C2, L<SP>1</SP>2, C<SP>1</SP>2, and so on. A mark pulse brings the circuits L1, C1 into resonance and the increased voltage on the capacitor C1 is passed to the recorder 28. In similar manner a space impulse brings the circuit L<SP>1</SP>1, C<SP>1</SP>1 into resonance, but the voltage change on the capacitor C<SP>1</SP> 1 is not applied to the recorder 28. The impulses stored in the member 28 are read off during the reception of the fifth element of the code combination.
Patent GB-207960-A (GB)
Title: A new or improved knife-cleaning machine
IPC: A47L21/02
Filed: 1922-10-27
Abstract: 207,960. Holworthy, H. F. Oct. 27, 1922. Knives, cleaning and polishing.-A machine in which the knives may be fed continuously and are automatically ejected comprises two feltcovered discs 2 spring-pressed together and rotated by a handle 7 through gearing 8, a feedwheel 18 being arranged coplanar with the cleaning discs and driven from them through worm and skew gearing. The knives 21 are placed in radial slots in the feed-wheel and aligned by a V-shaped guide 25 so as to pass between the discs 2, the guide being also arranged so as to prevent the knives from slipping out of the slots until they reach the lower edge of the cleaning discs. The discs are rotated anticlockwise so that the knives are then withdrawn from the slots and sent down a shoot 27 into a collecting tray 28. The slots may be lined with felt and fitted with rollers 20 to protect the knife-handles, and means may be provided for adjusting the distance between the feed-wheel and the discs to take different sizes of knives. Specification 197,742, [Class 10, Animal-power engines &c.], is referred to.
Patent GB-225055-A (GB)
Title: Improvements in liquid barometers
IPC: G01L7/24
Filed: 1923-11-22
Abstract: 225,055. Starling, S. G. Nov. 22, 1923. Barometers; indicating means for; with recording apparatus. - Comprises a particular construction of the type in which the barometer tube is pivotally mounted, the pressure being indicated by the angle of tilt. The tube a, b is secured to a board c apertured at d above the centre of gravity to give passage to a bracket e upon which the device is supported by a knife edge f. The tilt of the device is indicated by a mirror g, an incident beam of light along the path h being reflected along the path j to a scale. In order to adjust the beam j to the scale a series of vertically and horizontally arranged knife-edged pins are provided upon which may be hung rings of lead n to vary the centre of gravity of the whole. The supporting bracket may carry an arcuate rack engaging a pinion pivoted to the board and carrying a needle moving over a circular scale on the board. In order to use the instrument as a barograph, the board may be connected by a link s with one arm of a bell-crank lever t, the other arm of which carries a recording pencil v moving over a clock-driven drum.
Patent GB-617484-A (GB)
Title: A toy piano
IPC: G10D13/08
Filed: 1946-10-03
Abstract: 617,484. Keyboard musical instruments. WHITEHEAD, E. Oct. 3, 1946, No. 29469. [Class 88 (ii)] [Also in Group XV] In a toy piano comprising a casing 10 shaped to represent a piano and having keys 11 pivotally mounted therein to form a keyboard, a number of sounding rods 17 and strikers 22 are provided, one for each key, the strikers being pivotally mounted on a rod 20 extending across in front of the sounding rods and being so shaped that normally they lie on the back end of the keys, operation of a key causing the striker associated therewith to pivot on the rod to strike a sounding rod and then to fall back on to the key ready for use again. The strikers each comprise a tubular portion 21 surrounding the rod 20 having outstanding therefrom a strip 22 bent back upon itself at an angle of about 45 degrees, the knees 23 of the bent striker strips extending towards the front of the toy and normally resting on the back ends of the keys. The length of the tubular portions 21 of the strikers is such as to space them correctly on the rod 20. The sounding rods and strikers are carried by the back 15 of the casing which may be slid into slots in the sides of the casing and kept in position by means of the secured top 16 of the casing. The sounding rods may be carried at one end by a steel bar 18 secured to the back of the casing, the sounding rods extending upwardly or downwardly from the bar 18 as desired. The rod 20 is carried by a pair of brackets 19.
Patent GB-603953-A (GB)
Title: Improvements relating to folding baby-carriages and push-chairs, invalid-chairs, andthe like
IPC: B62B7/06
Filed: 1945-11-07
Abstract: 603,953. Foot rests. AXON, F. T., KEENE, J. A. PERRY-, and HEATH, H. V. Nov. 7, 1945, No. 29647. [Class 52(ii)] [Also in Group XXXII] A foot rest 40 for a perambulator (see Group XXXII) is carried by a pair of side arms each comprising two parts 41, 42 jointed at 43 and arranged to be slid into a tube 7 when the foot rest is not required as indicated in dotted lines, lugs 44 engaging an inner plug 45 limit the withdrawal of the arms from the tube. Reference has been directed by the Comptroller to Specification 603,527. [Group XXXII]
Patent GB-617538-A (GB)
Title: Improvements in or relating to the stiffening of shoe uppers
IPC: A43B23/16
Filed: 1946-10-05
Abstract: Shoe stiffeners, especially for the toe ends, comprise a blank of absorbent fibrous sheet material charged with a cellulose derivative and a substance of high boiling point having a plasticizing action on the derivative.  A dried external film, e.g. of glue, may provide a bonding between the stiffener and a shoe upper, and/or prevent premature evaporation of the material of high boiling point.  The fibrous sheet material may be omitted, the stiffener being then in the form of a coherent self-sustaining film consisting, at least in part, of a mixture of plasticized cellulose derivative and a proportion of high boiling point resinous material entrapped therein. The impregnated blank is rendered limp before or after its incorporation in a shoe upper, e.g. by a heat treatment as described in Specification 244,507 or Specification 217,983, [both in Class 17 (i)], at 212 DEG  F. or slightly more, and, after pulling over, may be softened again, e.g. by a device as described in Specification 524,261, [Group VII].  The last may normally be slipped after about two hours. One suitable impregnant mixture comprises 17 lb. 8 oz. of triacetin, 1 lb. 4 1/3 oz. of pine oil, 110 lb. acetone, 200 lb. industrial methylated spirits 66 O.P., 45 lb. 8 oz. gypsum, 43 lb. 12 oz. "Vinsol" (Registered Trade Mark) or B resin, 18 lb. 12 oz. F.F. resin and 63 lb. 6 oz. of dry T.B.H. scrap celluloid. The two resins should be in proportion to have a combined melting point of about 213 DEG  F.  The first four ingredients are mixed together and the next three added in sequence and, after stirring, the relatively dry celluloid is added.  A cotton fabric napped on both sides is impregnated with the mixture and, after cooling and drying, is calendered and passed through a bath in the proportion of 3 lb. of glue to 9 lb. of water.  Stiffening members are cut from the coated fabric.  A modified form of stiffening member may be prepared by using a resin-free impregnant as follows: triacetin 5 parts, pine oil 1/4 part, acetone 26 parts, industrial alcohol 66 O.P. 80 parts, gypsum 15 parts and scrap celluloid 20 parts, all by weight.  Another modified form of p  stiffening member may have as an impregnant mixture one having the following proportions by weight: triacetin 15.8, acetone, 80, industrial alcohol 74 O.P. 60, vinsol 25, Hercules P.M.3, cellulose acetate 25.  Instead of the glue mentioned above, a bath having the following proportions by weight may be used: colophony 60, ethyl cellulose 20, industrial alcohol 74 O.P. 100, and acetone 120.  Specifications 14453/97, [Class 17], 381,245 and 396,086, [both in Group VII], also are referred to.
Patent GB-520239-A (GB)
Title: Improvements in bearings for the movable elements of measuring instruments
IPC: G01R11/12
Filed: 1938-10-14
Abstract: 520,239. Bearings. ENGLISH ELECTRIC CO., Ltd., and TILSTONE, G. Oct. 14, 1938, No. 29784, [Class 12 (i)] [Also in Group IV] The top bearing of the rotating spindle 2 of an electric supply meter or other measuring instrument comprises a pin 1 projecting downwards from a fixed member into a bearing bush or washer 4 secured by a cap 3 to the spindle, the washer 4 being composed of fibrous or cellulosic material impregnated with artificial resin such as bakelized textile fabric, fibre, or paper. Alternatively a pin carried by the spindle 2 may project into a bush or washer secured to a fixed member. Previously to being mounted, the bush may be immersed for a time in oil at a temperature of 50‹ C. to 100‹C., the free surface oil being subsequently removed by washing in solvents or degreasing material.
Patent GB-1241352-A (GB)
Title: Improvements in or relating to variable ratio drive units
Inventor: POWER JOHN FORDHAM
IPC: F16H3/66
Filed: 1969-06-12
Abstract: 1,241,352. Variable-speed gearing. AUTOMOTIVE PRODUCTS CO. Ltd. 7 May, 1970 [12 June, 1969], No. 29793/69. Heading F2D. Three reduced ratios forward, direct and reverse drive are provided in a motor vehicle overlapped bevel planetary change-speed gear, comprising stepped bevel planet clusters 25, 26 mounted on a carrier 22 and meshing an input bevel sun 13, a reaction bevel sun 31 and driven bevel suns 28, 29 selectively clutched at 32, 33 to an output shaft 16, the carrier 22 and reaction sun 31 being selectively braked at 36 and 37. The ratios are obtained as follows. 1st ratio.-Brake 37 engaged holding reaction sun 31, clutch 33 engaged connecting sun 29 to output shaft 16, drive from input sun 13, planet clusters and carrier 26, 27 and 22 to sun 29 and output shaft 16. 2nd ratio.-Brake 37 and clutch 33 released, brake 36 engaged holding carrier 22, clutch 32 engaged connecting sun 28 to output shaft 16, drive from sun 13, stationed planet clusters 26, 27 to sun 28 and output shaft 16. 3rd ratio.-Brake 36 released and brake 37 re-engaged, keeping the clutch 32 engaged, drive from sun 13, planet clusters 26, 27 which now roll around the braked reaction sun 31 to drive the sun 28 and output shaft 16 at a higher speed than the carrier 22. 4th (direct) ratio.-Both brakes 36, 37 released, and both clutches 32, 33 engaged to provide direct lock-up drive. Reverse ratio.-Clutch 33 engaged connecting sun 29 to output shaft 16, and brake 36 engaged to station carrier 22, drive from sun 13, stationed planet clusters 26, 27 to reversely drive sun 29 and output shaft 16, the reverse ratio being the same valve as the 2nd forward speed ratio. The multi-disc clutches 32, 33 and bond washers 36, 37 are fluid pressure operated, and the C.S.G. is automatically controlled in response to changes of engine or vehicle speed and torque loading, but may be controlled normally if required.
Patent GB-1526722-A (GB)
Title: Method for producing a laminated high strength sheet
IPC: B29C48/23
Filed: 1974-07-05
Abstract: 1526722 Laminates O-B RASMUSSEN 27 Aug 1975 [5 July 1974 11 Dec 1974 12 Feb 1975 (2)] 29807/74 53644/74 5971/75 and 5972/75 Headings B5N and B5A A laminating method comprises extruding at at least two layers of molten polymer blend, each of polymers that are incompatible such that on solidification the blend comprises a dispersion of one polymer in a polymeric matrix, attenuating each layer while molten, before, during or after extrusion, to distort the particles in each layer into a fibrillar grain, structure having a predetermined direction of splittability after solidification into a film, bonding the films with said directions transverse to each other, solidifying the layers and biaxially orienting the product on substantially uniaxial steps at a temperature low enough to maintain said directions, the bonding being sufficiently weak to allow local delamination upon tearing. The blends may be polyamide mixtures, iso- or syndiolactic polypropylene and high or low density polyethylene-together with a sticky atactic polypropylene, ethylene propylene rubber or polyisobutylene. Bonding may be effected using adhesive on spots or lines or by applying a release agent in spots or lines. Bonding may be effected using solidified films. In the method shown with reference to Fig. 1, two concentric tubular streams of the blends 1, 2 are rotated in passage through an annular extrusion die while rotating rings 7, 8 to effect attenuation, the streams being bonded in collection chamber 15 and passed molten through exit slot 16. In the method of Fig. 2, the die has fixed inlet 17, fixed bearing 18 supported by rotating members 19, 20 forming exit 21, polymer blend A being extruded through annular conduits 22, 23 and blend B through conduit 24, the resultant streams passing channel arrays 25, 26, 27 to annular chambers 28, 29, 30 respectively, merging in chamber 38 and exiting by orifice 21. In the embodiment of Fig. 3, streams C, D pass from annular conduits 44, 45, 46 through channels 47, 48 respectively into annular chambers 49, 50. In the embodiment of Fig. 4, 60 is a rotating ring formed extrusion die, a blend being fed into circular groove 61 and led by rotating exit slot 62, through channels 63. 65 is a fixed mandrel and 66 a preformed tubular sheet having a longitudinal direction of splittability, the fluid polymer 70 from slot 62 being wound around the sheet.